go-sqlcipher/crypt_find_hash.c

/* LibTomCrypt, modular cryptographic library -- Tom St Denis */
/* SPDX-License-Identifier: Unlicense */
#include "tomcrypt_private.h"

/**
  @file crypt_find_hash.c
  Find a hash, Tom St Denis
*/

/**
   Find a registered hash by name
   @param name   The name of the hash to look for
   @return >= 0 if found, -1 if not present
*/
int find_hash(const char *name)
{
   int x;
   LTC_ARGCHK(name != NULL);
   LTC_MUTEX_LOCK(&ltc_hash_mutex);
   for (x = 0; x < TAB_SIZE; x++) {
       if (hash_descriptor[x].name != NULL && XSTRCMP(hash_descriptor[x].name, name) == 0) {
          LTC_MUTEX_UNLOCK(&ltc_hash_mutex);
          return x;
       }
   }
   LTC_MUTEX_UNLOCK(&ltc_hash_mutex);
   return -1;
}